TLV5630: not able to get proper output

Colombo Carlo

Part Number: TLV5630

Hello everybody ,

please I am using A f28065 (c2000 ) to drive a TLV5630 . my SPI is @ 2.5 MHz and in attach one scope screenshot of my command .

It seems like in this post

“ https://e2e.ti.com/support/data-converters/f/73/t/216341?tisearch=e2e-quicksearch&keymatch=tlv5630 “ that some SPI clock is missing .

please coudl you share a scope screenshot with proper SPI clock and data ?

in datasheet I can see SPI clock alwasy running , while in my case it stops after data .

thank you

regards

Carlo

over 6 years ago

0 Kevin Duke over 6 years ago

TI__Mastermind 46290 points

Hello Carlo,

Can you please share a schematic and / or identify the interface mode you have selected for the device?

0 Colombo Carlo over 6 years ago in reply to Kevin Duke

TI__Mastermind 24120 points

HI Kevin ,
these are pins out of the mcu :
Pin 2 (DIN) = SIMO (GPIO24)
Pin 3 (SCLK) = CLK (GPIO26)
Pin 4 (FS) = nSPISTE (GPIO27)
Pin 5 (nPRE) = 3V3
Pin 16 (REF) = NOT connected
Pin 17 (MODE) = 3V3 (uC mode)
Pin 18 (nLDAC) = 0V

do you have a scope screenshot of working solution ?
do you need anything else ? please coudl you contact me offline ?
thank you
regards
Carlo

0 Kevin Duke over 6 years ago in reply to Colombo Carlo

TI__Mastermind 46290 points

This thread has been taken offline.

Data converters

Data converters forum

TLV5630: not able to get proper output